mate 5. Assume that the Australian dollar's spot rate is $0.90 and that the Australian and U.S. one-year inter- est rates are initially 6 percent. Then assume that the Australian one-year interest rate increases by 5 per- centage points, while the U.S. one-year interest rate remains unchanged. Using this information and the international Fisher effect (IFE) theory, forecast the spot rate for one year ahead. 6. In question 5, the Australian interest rates increased from 6 percent to 11 percent. According to the IFE, which underlying factor would cause such a change? Give an explanation based on the IFE of the forces that would cause a change in the Australian dollar. If U.S. investors believe in the IFE, will they attempt to capitalize on the higher Australian interest rates? Explain.